./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 258242508bb2f0d624fb3f4a66fd347aa6adb575 ....................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 258242508bb2f0d624fb3f4a66fd347aa6adb575 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:27:32,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:27:32,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:27:32,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:27:32,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:27:32,759 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:27:32,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:27:32,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:27:32,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:27:32,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:27:32,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:27:32,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:27:32,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:27:32,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:27:32,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:27:32,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:27:32,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:27:32,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:27:32,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:27:32,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:27:32,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:27:32,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:27:32,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:27:32,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:27:32,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:27:32,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:27:32,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:27:32,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:27:32,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:27:32,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:27:32,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:27:32,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:27:32,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:27:32,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:27:32,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:27:32,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:27:32,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:27:32,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:27:32,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:27:32,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:27:32,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:27:32,840 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:27:32,867 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:27:32,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:27:32,868 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:27:32,868 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:27:32,868 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:27:32,869 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:27:32,869 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:27:32,869 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:27:32,869 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:27:32,869 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:27:32,870 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:27:32,870 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:27:32,870 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:27:32,870 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:27:32,870 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:27:32,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:27:32,871 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:27:32,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:27:32,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:27:32,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:27:32,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:27:32,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:27:32,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:27:32,873 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:27:32,873 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:27:32,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:27:32,873 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:27:32,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:27:32,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:27:32,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:27:32,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:32,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:27:32,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:27:32,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:27:32,875 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:27:32,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:27:32,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:27:32,876 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:27:32,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:27:32,876 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 258242508bb2f0d624fb3f4a66fd347aa6adb575 [2021-10-11 02:27:33,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:27:33,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:27:33,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:27:33,161 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:27:33,163 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:27:33,165 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2021-10-11 02:27:33,249 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/data/7e9b11763/1cfe164f80224e30bcc94809831938d6/FLAG6987977f4 [2021-10-11 02:27:33,725 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:27:33,725 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2021-10-11 02:27:33,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/data/7e9b11763/1cfe164f80224e30bcc94809831938d6/FLAG6987977f4 [2021-10-11 02:27:34,075 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/data/7e9b11763/1cfe164f80224e30bcc94809831938d6 [2021-10-11 02:27:34,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:27:34,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:27:34,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:34,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:27:34,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:27:34,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:34" (1/1) ... [2021-10-11 02:27:34,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12d28c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:34, skipping insertion in model container [2021-10-11 02:27:34,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:34" (1/1) ... [2021-10-11 02:27:34,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:27:34,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:34,335 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2021-10-11 02:27:34,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:34,344 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:27:34,386 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2021-10-11 02:27:34,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:34,403 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:27:34,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:34 WrapperNode [2021-10-11 02:27:34,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:34,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:34,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:27:34,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:27:34,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:34" (1/1) ... [2021-10-11 02:27:34,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:34" (1/1) ... [2021-10-11 02:27:34,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:34,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:27:34,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:27:34,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:27:34,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:34" (1/1) ... [2021-10-11 02:27:34,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:34" (1/1) ... [2021-10-11 02:27:34,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:34" (1/1) ... [2021-10-11 02:27:34,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:34" (1/1) ... [2021-10-11 02:27:34,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:34" (1/1) ... [2021-10-11 02:27:34,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:34" (1/1) ... [2021-10-11 02:27:34,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:34" (1/1) ... [2021-10-11 02:27:34,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:27:34,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:27:34,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:27:34,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:27:34,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:34" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:34,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:27:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:27:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-11 02:27:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:27:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 02:27:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:27:34,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:27:34,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:27:34,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:27:35,207 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:27:35,207 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-11 02:27:35,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:35 BoogieIcfgContainer [2021-10-11 02:27:35,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:27:35,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:27:35,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:27:35,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:27:35,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:27:34" (1/3) ... [2021-10-11 02:27:35,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e4144f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:35, skipping insertion in model container [2021-10-11 02:27:35,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:34" (2/3) ... [2021-10-11 02:27:35,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e4144f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:35, skipping insertion in model container [2021-10-11 02:27:35,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:35" (3/3) ... [2021-10-11 02:27:35,218 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b.c [2021-10-11 02:27:35,232 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:27:35,236 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:27:35,246 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:27:35,270 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:27:35,270 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:27:35,270 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:27:35,270 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:27:35,271 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:27:35,271 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:27:35,271 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:27:35,271 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:27:35,283 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2021-10-11 02:27:35,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:27:35,288 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:35,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:35,289 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:35,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:35,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1765374846, now seen corresponding path program 1 times [2021-10-11 02:27:35,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:35,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656464907] [2021-10-11 02:27:35,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:35,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:35,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656464907] [2021-10-11 02:27:35,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:35,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:27:35,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442598381] [2021-10-11 02:27:35,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:27:35,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:35,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:27:35,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:27:35,470 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2021-10-11 02:27:35,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:35,485 INFO L93 Difference]: Finished difference Result 37 states and 57 transitions. [2021-10-11 02:27:35,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:27:35,487 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-10-11 02:27:35,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:35,495 INFO L225 Difference]: With dead ends: 37 [2021-10-11 02:27:35,496 INFO L226 Difference]: Without dead ends: 17 [2021-10-11 02:27:35,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:27:35,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-11 02:27:35,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-11 02:27:35,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-11 02:27:35,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2021-10-11 02:27:35,530 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 8 [2021-10-11 02:27:35,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:35,530 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-10-11 02:27:35,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:27:35,530 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2021-10-11 02:27:35,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:27:35,531 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:35,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:35,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:27:35,532 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:35,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:35,533 INFO L82 PathProgramCache]: Analyzing trace with hash -656636463, now seen corresponding path program 1 times [2021-10-11 02:27:35,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:35,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855176696] [2021-10-11 02:27:35,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:27:35,583 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:27:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:27:35,635 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:27:35,681 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:27:35,686 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:27:35,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:27:35,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:27:35 BoogieIcfgContainer [2021-10-11 02:27:35,737 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:27:35,737 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:27:35,738 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:27:35,738 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:27:35,738 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:35" (3/4) ... [2021-10-11 02:27:35,740 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:27:35,740 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:27:35,743 INFO L168 Benchmark]: Toolchain (without parser) took 1662.74 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 51.2 MB in the beginning and 63.9 MB in the end (delta: -12.7 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:35,744 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:35,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.26 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 51.2 MB in the beginning and 72.3 MB in the end (delta: -21.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:35,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.02 ms. Allocated memory is still 98.6 MB. Free memory was 72.3 MB in the beginning and 70.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:35,746 INFO L168 Benchmark]: Boogie Preprocessor took 94.41 ms. Allocated memory is still 98.6 MB. Free memory was 70.5 MB in the beginning and 68.7 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:35,747 INFO L168 Benchmark]: RCFGBuilder took 663.61 ms. Allocated memory is still 98.6 MB. Free memory was 68.7 MB in the beginning and 59.9 MB in the end (delta: 8.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:35,747 INFO L168 Benchmark]: TraceAbstraction took 525.84 ms. Allocated memory is still 98.6 MB. Free memory was 59.2 MB in the beginning and 64.4 MB in the end (delta: -5.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:35,748 INFO L168 Benchmark]: Witness Printer took 3.19 ms. Allocated memory is still 98.6 MB. Free memory was 64.4 MB in the beginning and 63.9 MB in the end (delta: 564.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:35,752 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 322.26 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 51.2 MB in the beginning and 72.3 MB in the end (delta: -21.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.02 ms. Allocated memory is still 98.6 MB. Free memory was 72.3 MB in the beginning and 70.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 94.41 ms. Allocated memory is still 98.6 MB. Free memory was 70.5 MB in the beginning and 68.7 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 663.61 ms. Allocated memory is still 98.6 MB. Free memory was 68.7 MB in the beginning and 59.9 MB in the end (delta: 8.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 525.84 ms. Allocated memory is still 98.6 MB. Free memory was 59.2 MB in the beginning and 64.4 MB in the end (delta: -5.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.19 ms. Allocated memory is still 98.6 MB. Free memory was 64.4 MB in the beginning and 63.9 MB in the end (delta: 564.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 153]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 139, overapproximation of bitwiseOr at line 61, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; [L148] double x = -1.0 / 0.0; [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L149] double res = __ieee754_log(x); [L139] return x != x; [L152] COND TRUE !isnan_double(res) [L153] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:27:38,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:27:38,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:27:38,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:27:38,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:27:38,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:27:38,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:27:38,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:27:38,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:27:38,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:27:38,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:27:38,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:27:38,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:27:38,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:27:38,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:27:38,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:27:38,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:27:38,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:27:38,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:27:38,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:27:38,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:27:38,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:27:38,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:27:38,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:27:38,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:27:38,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:27:38,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:27:38,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:27:38,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:27:38,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:27:38,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:27:38,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:27:38,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:27:38,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:27:38,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:27:38,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:27:38,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:27:38,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:27:38,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:27:38,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:27:38,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:27:38,281 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:27:38,321 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:27:38,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:27:38,323 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:27:38,324 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:27:38,324 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:27:38,324 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:27:38,324 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:27:38,325 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:27:38,325 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:27:38,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:27:38,328 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:27:38,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:27:38,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:27:38,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:27:38,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:27:38,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:27:38,329 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:27:38,329 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:27:38,329 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:27:38,330 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:27:38,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:27:38,330 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:27:38,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:27:38,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:27:38,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:27:38,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:27:38,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:38,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:27:38,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:27:38,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:27:38,332 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:27:38,332 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:27:38,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:27:38,333 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:27:38,333 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:27:38,334 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 258242508bb2f0d624fb3f4a66fd347aa6adb575 [2021-10-11 02:27:38,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:27:38,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:27:38,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:27:38,789 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:27:38,790 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:27:38,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2021-10-11 02:27:38,872 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/data/34ba829c4/afe4cdd484bb477696456d04aae0fc49/FLAG4927ff95f [2021-10-11 02:27:39,409 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:27:39,410 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2021-10-11 02:27:39,422 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/data/34ba829c4/afe4cdd484bb477696456d04aae0fc49/FLAG4927ff95f [2021-10-11 02:27:39,748 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/data/34ba829c4/afe4cdd484bb477696456d04aae0fc49 [2021-10-11 02:27:39,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:27:39,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:27:39,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:39,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:27:39,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:27:39,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:39" (1/1) ... [2021-10-11 02:27:39,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5614dabb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:39, skipping insertion in model container [2021-10-11 02:27:39,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:39" (1/1) ... [2021-10-11 02:27:39,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:27:39,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:39,973 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2021-10-11 02:27:39,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:39,988 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:27:40,035 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2021-10-11 02:27:40,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:40,056 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:27:40,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:40 WrapperNode [2021-10-11 02:27:40,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:40,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:40,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:27:40,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:27:40,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:40" (1/1) ... [2021-10-11 02:27:40,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:40" (1/1) ... [2021-10-11 02:27:40,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:40,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:27:40,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:27:40,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:27:40,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:40" (1/1) ... [2021-10-11 02:27:40,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:40" (1/1) ... [2021-10-11 02:27:40,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:40" (1/1) ... [2021-10-11 02:27:40,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:40" (1/1) ... [2021-10-11 02:27:40,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:40" (1/1) ... [2021-10-11 02:27:40,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:40" (1/1) ... [2021-10-11 02:27:40,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:40" (1/1) ... [2021-10-11 02:27:40,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:27:40,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:27:40,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:27:40,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:27:40,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:40" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:40,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-11 02:27:40,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-11 02:27:40,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:27:40,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:27:40,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 02:27:40,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:27:40,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:27:40,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 02:27:40,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:28:06,770 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:28:06,771 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-11 02:28:06,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:06 BoogieIcfgContainer [2021-10-11 02:28:06,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:28:06,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:28:06,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:28:06,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:28:06,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:27:39" (1/3) ... [2021-10-11 02:28:06,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7327db9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:06, skipping insertion in model container [2021-10-11 02:28:06,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:40" (2/3) ... [2021-10-11 02:28:06,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7327db9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:06, skipping insertion in model container [2021-10-11 02:28:06,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:06" (3/3) ... [2021-10-11 02:28:06,782 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b.c [2021-10-11 02:28:06,798 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:28:06,802 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:28:06,810 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:28:06,835 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:28:06,838 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:28:06,838 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:28:06,838 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:28:06,839 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:28:06,839 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:28:06,839 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:28:06,840 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:28:06,854 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2021-10-11 02:28:06,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:28:06,859 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:06,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:06,861 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:06,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:06,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2021-10-11 02:28:06,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:28:06,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730252376] [2021-10-11 02:28:06,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:28:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:07,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:28:07,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:28:07,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:07,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:28:07,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730252376] [2021-10-11 02:28:07,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:07,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:28:07,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482983348] [2021-10-11 02:28:07,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:28:07,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:28:07,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:28:07,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:28:07,944 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2021-10-11 02:28:07,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:07,962 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2021-10-11 02:28:07,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:28:07,963 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2021-10-11 02:28:07,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:07,972 INFO L225 Difference]: With dead ends: 56 [2021-10-11 02:28:07,973 INFO L226 Difference]: Without dead ends: 26 [2021-10-11 02:28:07,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:28:07,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-11 02:28:08,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-10-11 02:28:08,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-10-11 02:28:08,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2021-10-11 02:28:08,008 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2021-10-11 02:28:08,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:08,008 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-10-11 02:28:08,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:28:08,009 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-10-11 02:28:08,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:28:08,010 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:08,010 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:08,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:28:08,224 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:08,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:08,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2021-10-11 02:28:08,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:28:08,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159912896] [2021-10-11 02:28:08,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:28:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:09,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:28:09,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:28:09,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:09,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:28:09,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159912896] [2021-10-11 02:28:09,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:09,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:28:09,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520177318] [2021-10-11 02:28:09,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:28:09,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:28:09,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:28:09,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:28:09,564 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand 4 states. [2021-10-11 02:28:12,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:12,634 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2021-10-11 02:28:12,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:28:12,657 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-10-11 02:28:12,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:12,658 INFO L225 Difference]: With dead ends: 31 [2021-10-11 02:28:12,658 INFO L226 Difference]: Without dead ends: 13 [2021-10-11 02:28:12,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:28:12,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-11 02:28:12,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-11 02:28:12,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-11 02:28:12,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2021-10-11 02:28:12,661 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2021-10-11 02:28:12,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:12,662 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2021-10-11 02:28:12,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:28:12,662 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-10-11 02:28:12,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:28:12,662 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:12,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:12,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:28:12,863 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:28:12,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:12,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1813045648, now seen corresponding path program 1 times [2021-10-11 02:28:12,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:28:12,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520814372] [2021-10-11 02:28:12,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:28:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:13,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-11 02:28:13,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:28:14,145 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2021-10-11 02:28:14,555 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 3 [2021-10-11 02:28:14,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:14,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:28:14,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520814372] [2021-10-11 02:28:14,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:14,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:28:14,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423941779] [2021-10-11 02:28:14,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:28:14,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:28:14,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:28:14,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:28:14,760 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand 7 states. [2021-10-11 02:28:18,033 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2021-10-11 02:28:18,235 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-10-11 02:28:18,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:18,236 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-11 02:28:18,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:28:18,237 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2021-10-11 02:28:18,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:18,237 INFO L225 Difference]: With dead ends: 13 [2021-10-11 02:28:18,237 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:28:18,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:28:18,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:28:18,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:28:18,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:28:18,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:28:18,239 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-11 02:28:18,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:18,239 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:28:18,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:28:18,239 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:28:18,239 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:28:18,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:28:18,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:28:18,584 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2021-10-11 02:28:18,924 WARN L197 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2021-10-11 02:28:18,927 INFO L262 CegarLoopResult]: For program point L60(lines 60 72) no Hoare annotation was computed. [2021-10-11 02:28:18,928 INFO L262 CegarLoopResult]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2021-10-11 02:28:18,928 INFO L262 CegarLoopResult]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2021-10-11 02:28:18,928 INFO L258 CegarLoopResult]: At program point L52-2(lines 52 57) the Hoare annotation is: (and (= ~zero~0 (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_log_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))) [2021-10-11 02:28:18,928 INFO L262 CegarLoopResult]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2021-10-11 02:28:18,929 INFO L258 CegarLoopResult]: At program point L139(line 139) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2021-10-11 02:28:18,929 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:28:18,929 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:28:18,929 INFO L262 CegarLoopResult]: For program point L61(lines 61 62) no Hoare annotation was computed. [2021-10-11 02:28:18,929 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:28:18,929 INFO L262 CegarLoopResult]: For program point L152(lines 152 155) no Hoare annotation was computed. [2021-10-11 02:28:18,929 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-10-11 02:28:18,930 INFO L262 CegarLoopResult]: For program point L86(lines 86 102) no Hoare annotation was computed. [2021-10-11 02:28:18,930 INFO L262 CegarLoopResult]: For program point L115(lines 115 119) no Hoare annotation was computed. [2021-10-11 02:28:18,930 INFO L262 CegarLoopResult]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2021-10-11 02:28:18,930 INFO L258 CegarLoopResult]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2021-10-11 02:28:18,930 INFO L262 CegarLoopResult]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2021-10-11 02:28:18,930 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:28:18,930 INFO L265 CegarLoopResult]: At program point L157(lines 141 158) the Hoare annotation is: true [2021-10-11 02:28:18,931 INFO L258 CegarLoopResult]: At program point L124(lines 47 126) the Hoare annotation is: (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|) [2021-10-11 02:28:18,931 INFO L262 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2021-10-11 02:28:18,931 INFO L262 CegarLoopResult]: For program point L87(lines 87 94) no Hoare annotation was computed. [2021-10-11 02:28:18,931 INFO L262 CegarLoopResult]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2021-10-11 02:28:18,931 INFO L258 CegarLoopResult]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2021-10-11 02:28:18,931 INFO L262 CegarLoopResult]: For program point L96(lines 96 101) no Hoare annotation was computed. [2021-10-11 02:28:18,931 INFO L262 CegarLoopResult]: For program point L63(lines 63 64) no Hoare annotation was computed. [2021-10-11 02:28:18,931 INFO L262 CegarLoopResult]: For program point L121(lines 121 124) no Hoare annotation was computed. [2021-10-11 02:28:18,932 INFO L262 CegarLoopResult]: For program point L88(lines 88 93) no Hoare annotation was computed. [2021-10-11 02:28:18,932 INFO L262 CegarLoopResult]: For program point L113(lines 113 125) no Hoare annotation was computed. [2021-10-11 02:28:18,955 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,964 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,964 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,964 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,964 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,965 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,965 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,966 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,966 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,967 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,967 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,967 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,967 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,968 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,968 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,968 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,968 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,968 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,969 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,970 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,971 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:18,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:28:18 BoogieIcfgContainer [2021-10-11 02:28:18,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:28:18,973 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:28:18,974 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:28:18,974 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:28:18,974 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:06" (3/4) ... [2021-10-11 02:28:18,977 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:28:18,992 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-11 02:28:18,993 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 02:28:18,993 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:28:18,993 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:28:19,019 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) == \result [2021-10-11 02:28:19,020 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) == \result && 1bv32 == \result [2021-10-11 02:28:19,062 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bea04d3-ff44-4602-9cd0-0fdfe189eb04/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:28:19,062 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:28:19,063 INFO L168 Benchmark]: Toolchain (without parser) took 39310.17 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 40.8 MB in the beginning and 36.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:19,063 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 60.8 MB. Free memory is still 42.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:19,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.89 ms. Allocated memory is still 60.8 MB. Free memory was 40.5 MB in the beginning and 27.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:19,066 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.99 ms. Allocated memory is still 60.8 MB. Free memory was 27.1 MB in the beginning and 44.5 MB in the end (delta: -17.3 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:19,066 INFO L168 Benchmark]: Boogie Preprocessor took 39.69 ms. Allocated memory is still 60.8 MB. Free memory was 44.5 MB in the beginning and 42.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:19,067 INFO L168 Benchmark]: RCFGBuilder took 26610.58 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 42.5 MB in the beginning and 49.7 MB in the end (delta: -7.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:19,067 INFO L168 Benchmark]: TraceAbstraction took 12197.94 ms. Allocated memory is still 73.4 MB. Free memory was 49.1 MB in the beginning and 41.0 MB in the end (delta: 8.1 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:19,068 INFO L168 Benchmark]: Witness Printer took 88.91 ms. Allocated memory is still 73.4 MB. Free memory was 41.0 MB in the beginning and 36.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:19,070 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 60.8 MB. Free memory is still 42.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 302.89 ms. Allocated memory is still 60.8 MB. Free memory was 40.5 MB in the beginning and 27.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.99 ms. Allocated memory is still 60.8 MB. Free memory was 27.1 MB in the beginning and 44.5 MB in the end (delta: -17.3 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.69 ms. Allocated memory is still 60.8 MB. Free memory was 44.5 MB in the beginning and 42.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 26610.58 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 42.5 MB in the beginning and 49.7 MB in the end (delta: -7.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12197.94 ms. Allocated memory is still 73.4 MB. Free memory was 49.1 MB in the beginning and 41.0 MB in the end (delta: 8.1 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * Witness Printer took 88.91 ms. Allocated memory is still 73.4 MB. Free memory was 41.0 MB in the beginning and 36.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 153]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 139]: Loop Invariant [2021-10-11 02:28:19,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,080 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,080 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,080 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,080 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) == \result && 1bv32 == \result - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant [2021-10-11 02:28:19,082 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,082 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,084 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,084 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,084 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,084 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,084 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) == \result - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant [2021-10-11 02:28:19,085 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:28:19,085 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (zero == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 15 SDslu, 25 SDs, 0 SdLazy, 20 SolverSat, 2 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 65 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 5 QuantifiedInterpolants, 2512 SizeOfPredicates, 17 NumberOfNonLiveVariables, 163 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...